ai-sdr
(9)
Coldreach
Coldreach is a Y Combinator-backed (W23) AI sales development platform that helps B2B teams find companies that are ready to buy right now. Instead of blasting cold emails to random lists, teams describe what a buying signal looks like for their product in plain language, and Coldreach monitors 113M+ companies across job postings, news, LinkedIn activity, SEC filings, hiring changes and more, 24/7. When a match fires, the AI researches the account and writes personalized outreach that references the specific event - which the company says produces meaningfully higher reply and booking rates than spray-and-pray outbound.
Crustdata
Crustdata is a San Francisco company that supplies real-time company and people data through clean APIs and webhooks built for AI agents. Founded in 2024 and part of Y Combinator's Fall 2024 batch, it pulls live data from many primary sources so AI SDRs, recruiting tools, and investment platforms can find the right person, watch for job changes and funding rounds, and act on fresh signals instead of stale databases.
FuseAI (YC W25)
FuseAI (operating as Fuse, tryfuse.ai) is a San Francisco-based, Y Combinator W25 startup building an AI-native sales platform for outbound revenue teams. It consolidates the fragmented GTM stack - contact data, waterfall enrichment, email and LinkedIn automation, deliverability infrastructure, a parallel dialer, and real-time buying signals - into one system where AI agents execute sales workflows from natural-language prompts. Founded in 2024 by CEO Saurav Bubber (former Deel GTM operator) and CTO Imogen Low (ex-SAP, co-founder of NWO.ai), Fuse aims to let one rep do the work of five.
1mind
1mind is a San Francisco AI company that builds photorealistic, voice-enabled 'Superhumans' - digital go-to-market teammates that combine a face, a voice and a product-trained brain to qualify leads, run live demos, join sales calls, handle objections and onboard customers 24/7 across websites, products, video calls and deal rooms. Founded by 6sense founder Amanda Kahlow and CTO Sachin Bhat, the company publicly launched in November 2025 with $40 million in total funding and is used by more than 45 B2B companies including HubSpot, ZoomInfo, Nutanix and New Relic.
Valley
Valley is a New York-based AI startup building a single, autonomous outbound engine that acts as an AI sales development rep (SDR). It ingests your product, clones your voice, researches each prospect, and sends hyper-personalized LinkedIn outreach - identifying website visitors, enriching contacts, scoring intent, and booking sales meetings while human reps do other work. Founded by Zayd Ali, who exited a prior sales company at 18, Valley pitches itself as 'revenue in a box' for modern B2B teams, at roughly $395/month per seat versus a five-figure human SDR.
Lyzr AI
Lyzr AI is an enterprise agent-infrastructure company that helps banks, insurers, and other regulated organizations move AI agents from proof-of-concept to production. Its open-core Agent Framework bakes Safe AI and Responsible AI modules into the core architecture, while products like Agent Studio and a roster of named agents (Jazon the AI SDR, Skott the AI marketer) let teams build, govern, and deploy autonomous agents inside their own firewall or VPC. Backed by Accenture and valued at $250M, Lyzr positions itself as the trusted layer between large language models and the compliance-bound enterprise.
Qualified
Qualified is the San Francisco company that built Piper, the AI SDR agent that nurtures and converts website visitors into qualified pipeline for B2B enterprises. Born inside the Salesforce ecosystem and now being absorbed back into it, Qualified turned the corporate website from a brochure into a 24/7 sales floor.
SuperAGI
SuperAGI is a Palo Alto-based AI company building autonomous agents that run real work - sales outreach, software engineering, marketing, support - on a single platform. Founded by Ishaan Bhola and Mukunda NS, it began as an open-source agent framework on GitHub and grew into a 25+ app super-platform used by SMB and enterprise teams, backed by $10M Series A from Jan Koum's Newlands VC.
11x
11x builds autonomous AI 'digital workers' for go-to-market teams - software agents like Alice, an AI sales development rep, and Jordan, a multilingual AI phone rep. Founded in 2022 and based in San Francisco, the startup raised a $50M Series B from Andreessen Horowitz in late 2024 at a roughly $350M valuation. After turbulence around customer claims and culture, founder Hasan Sukkar stepped down as CEO in May 2025 and CTO Prabhav Jain took over.